Hi. I have a SHARP TV about 8 yrs old that switches off to Standby mode after using for about 20-25mins each time. Then it could not turn ON and stayed at Standby mode (even using remote or just push OFF then ON button - still back to standby mode). After about 15-20mins later I could switch on again by either using remote or push button. I checked all timer functions and there are no timer or lock that activated at all. Everything was as before. It just has this trouble of switching off and stay at standby mode after 20-25minutes of usage. Is this something that can be solved easily? What are the likely faults? Please advise.
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Hi.i had exactly the same problem with my bush 37 inch lcd tv and i took it to a friend of mine who is a t.v electrician he said it was a component in the back of the tv which he replaced and its now working fine.
LG CT-29K30EX 29" TV - We have the same symptoms as described. If you are a person who is not afraid of opening the back cover of your TV and replacing parts inside. this tip is for you. Contact a service person if your not 100% sure. Its actually easy, it involves replacing a small capacitor in the power supply section. You don't need to troubleshoot coz i've done that for you for free. Find this capacitor in the power supply. C801 with a value of 100uf / 35V. De solder and replaced it with the same value or a much higher Voltage rating e.g. 50V. Done! your T.V. is alive again. - Rey Tilles - New Zealand
Is this a recognised symptom?
the problem in power supply.
it is due to switching oscillator& switcing output circuit probabaly capacitor & transistor.
as set is very old so after power supply is ok check for horizontal output also.
can it be fixed?
yes it is common & not major problem
Why shouldn't it be worth fixing? It's only 4 years old, my own TV is 15yo, I fixed it twice but it's still kick'n! You have a problem in the power supply, do you have electronic's know how? And test equipment? Soldering equipment? If so we could walk you through it, If not A repair man should only cost 80 to 100 to fix it.